I have a strange electrical problem.
During the winter months i used a Optimate 4 battery charger to keep my battery up to date. (battery bought in 09/2020)
The Vespa started immediately and i drove a short while to the local gas station to check the tire pressure. After that she did not start again.
After recharging the battery the vespa starts perfectly but the engine cuts out when the fan comes on.
Also when i cut the engine i can not start again. The engine turns over strongly.
I have a voltmeter installed that reads +-12,3 V when i start and rises to +- 14 V when driving.
So i seems the alternator works but the electricity doen not reach the battery.
Does this has something to do with the regulator??
Thanks in advance,